What is the name of lower invertebrates that have a jelly-like layer between endoderm and ectoderm? a. coelomates /b. pseudoceolomates / c. cnidarians

The intervention of extraterrestrials has been used to explain the bermuda triangle, a region of the atlantic ocean where ships and planes are frequently lost, leaving no evidence behind. how would this explanation best be characterized?

Diagram of the evolution of land plants?

Which one is an advantage of external fertilization a. the offspring are genetically identical to the parents b. more eggs can be fertilzed at one time c. more sperm can be released at one time d. more protection is available for developing plz